US20050150341A1 - Laterally movable trim saw - Google Patents
Laterally movable trim saw Download PDFInfo
- Publication number
- US20050150341A1 US20050150341A1 US11/030,052 US3005205A US2005150341A1 US 20050150341 A1 US20050150341 A1 US 20050150341A1 US 3005205 A US3005205 A US 3005205A US 2005150341 A1 US2005150341 A1 US 2005150341A1
- Authority
- US
- United States
- Prior art keywords
- trim
- pair
- saws
- trimmer
- saw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/16—Saw benches
- B27B5/22—Saw benches with non-feedable circular saw blade
- B27B5/228—Cross-cutting automatically laterally-fed travelling workpieces; Reducing lumber to desired lengths
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/29—Details; Component parts; Accessories
- B27B5/30—Details; Component parts; Accessories for mounting or securing saw blades or saw spindles
- B27B5/34—Devices for securing a plurality of circular saw blades on a single saw spindle; Equipment for adjusting the mutual distance
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/525—Operation controlled by detector means responsive to work
- Y10T83/538—Positioning of tool controlled
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/768—Rotatable disc tool pair or tool and carrier
- Y10T83/7684—With means to support work relative to tool[s]
- Y10T83/7688—Plural tool elements successively actuated at same station
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/768—Rotatable disc tool pair or tool and carrier
- Y10T83/7751—Means to separate elements of tool pair
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/768—Rotatable disc tool pair or tool and carrier
- Y10T83/7809—Tool pair comprises rotatable tools
- Y10T83/7822—Tool pair axially shiftable
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/768—Rotatable disc tool pair or tool and carrier
- Y10T83/7868—Tool element selectively operative
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/768—Rotatable disc tool pair or tool and carrier
- Y10T83/7872—Tool element mounted for adjustment
Definitions
- This invention relates to the field of lumber trimmers, and in particular to vertically and laterally translatable trim saws.
- a lumber trimmer contains multiple, independently vertically actuable drop saws used to cut lumber into a variety of lengths.
- the drop saws are fixed in their position along the trimmer.
- One movable trim saw may be mounted at or near one end of the trimmer.
- the movable trim saw is vertically and horizontally actuable to trim an end of a board as it passes through the trimmer.
- the movable trim saw is a each single circular saw that is horizontally incrementally movable so as to trim the end of a board at a point closest to the desired increment.
- the single movable trim saw may be translated laterally over a distance of for example 24 inches
- the time interval to move the saw from a minimum first end trim that is, trimming only a small amount off the end of the board
- a second maximum end trim in the given example then trimming twenty-four inches off the end of the board
- the present invention includes selective lateral translation of a pair of independently actuable end trim saws, mounted for concurrent co-axial transverse reciprocal movement at the end of a trimmer, thus minimizing the horizontal translation distance of the saws from a first minimum trimming position to a second maximum trimming position.
- the time required for lateral translation between these two positions is thereby reduced, which increases efficiency, for example by avoiding a reduction in lumber handling speeds.
- the trim saws has a fixed spacing between them of, for example, 12 ⁇ fraction (1/16) ⁇ inches, and are vertically actuable by suitable pneumatic means so as to selectively cut lumber to the desired length as it passes through the trimmer.
- a 16-foot board the most valuable use is to cut it into custom stud lengths, such as 92 5 ⁇ 8 inches.
- trim saws of fixed spacing two 8-foot boards are normally produced as the larger board passes through the trimmer.
- a stud is produced at the ‘lumber’ line end of the trimmer where a movable precision end trim saw is employed.
- the 8-foot (96 inch) length remaining on the opposite ‘clear’ line end remains as a dimensioned lumber piece unless further trimming is available.
- laterally movable trim saws allow for greater flexibility in the lumber trimming process.
- laterally movable trim saws provide ease of trimming to the required length.
- the present invention is a lumber trimmer having one or more pairs of trim saws which are positioned at an end of the trimmer and which are laterally movable relative to the flow path of the boards, that is, movable parallel to the longitudinal axis of boards translating through the trimmer.
- Each trim saw of the pair of trim saws is a drop saw which is selectively vertically movable to drop down to trim the end of a board.
- a pair of such movable trim saws may be mounted to a carriage a fixed distance spaced apart, for example 12 ⁇ fraction (1/16) ⁇ inches, and are laterally actuable by a hydraulic actuator or other suitable means for example by acting on the carriage.
- the end trim saws are thus reciprocally and concurrently movable and provide precise non-incremental board end trimming.
- each saw may be independently laterally movable, for example movable on the carriage, by separate actuators.
- Suitable motion control sensors positioned upstream from the trim saws normally govern the actuation of the hydraulic actuator and operation of the trim saws.
- the supporting frame for supporting the movable trim saws can be preferably mounted to the trimmer carriage at the ‘clear’ end, or alternatively at both ends of the trimmer.
- a pair of parallel rods may be provided which pass through linear bearings on which the trim saws are mounted.
- a pneumatic actuator mounted to the frame of the trimmer reciprocally moves the saw pair in unison with respect to the end of the board to be trimmed.
- Pneumatic actuators mounted in proximity to each saw, and laterally movable in concert with the saws, provide for independent vertical actuation of each trim saw.
- the trimmer according to the present invention for cutting a workpiece may be characterized in one aspect as including a frame supporting a lateral translation means across a workpiece flow path and a first pair of trim saws mounted at a first end of the trimmer in a parallel spaced apart orientation on the lateral translation means.
- the first pair of trim saws are laterally translatable on the lateral translation means substantially parallel to a longitudinal axis of the workpiece.
- a first pair of vertical actuators are provided for selectively independently vertically displacing each trim saw of the first pair of trim saws between a raised position and a lowered position,. Each vertical actuator cooperates with a corresponding trim saw, whereby each the trim saw may be selectively lowered to engage and trim the workpiece.
- a selectively actuable first lateral actuator cooperates with the lateral translation means for laterally translating the first pair of trim saws reciprocally and concurrently laterally across a workpiece flow path such that a lateral translation distance of the first pair of trim saws is minimized when positioning a first trim saw or a second trim saw of the first pair of trim saws for trimming the workpiece.
- the lateral translation means includes a laterally oriented horizontal first shaft.
- the lateral actuator is operably coupled to the first pair of trim saws and adapted for selectively horizontally translating the first pair of trim saws non-incrementally along the first shaft substantially parallel to the longitudinal axis of the workpiece.
- the first pair of trim saws may be mounted on a carriage, and the carriage mounted on the first shaft operably coupled to the lateral actuator such that the carriage is selectively laterally movable to reciprocally position the first pair of trim saws relative to the workpiece.
- Each trim saw may be mounted on a bell-crank.
- Each vertical actuator cooperates with a corresponding bell-crank.
- the first shaft includes at least a pair of parallel shafts.
- Each of the bell-cranks may include an upper arm and a lower arm.
- the first trim saw is rotatably mounted on the lower arm of a first bell-crank and a second trim saw is rotatably mounted on the lower arm of a second bell-crank.
- a first vertical actuator is mounted to the upper arm of the first bell-crank and a second vertical actuator is mounted to the upper arm of the second bell-crank.
- the lateral actuator includes two actuators, each operably coupled with a corresponding trim saw of the first and the second trim saws such that the first and the second trim saws may be independently selectively laterally translated on the lateral translation means.
- a second pair of trim saws are mounted in a parallel spaced apart orientation on the lateral translation means at a second end of the trimmer opposite the first end of the trimmer.
- the second pair of trim saws are laterally translatable on the lateral translation means substantially parallel to the longitudinal axis of the workpiece.
- a second pair of vertical actuators are provided for selectively vertically independently displacing each trim saw of the second pair of trim saws between a raised position out of the workpiece flow path and a lowered position in the workpiece flow path.
- the lateral translation means may include a laterally oriented horizontal second shaft. The second pair of trim saws may be mounted on the second shaft.
- FIG. 1 is a side elevation view of a lumber trimmer according to the present invention.
- FIG. 2 is a front elevation view of the laterally movable trim saws of the present invention.
- FIG. 3 is a front elevation view of the laterally movable trim saws of an alternative embodiment of the present invention.
- FIG. 4 is a schematic view illustrating successive trimming operations by the trim saws of the present invention.
- a trimmer 10 which by way of example has the capacity to accommodate boards of 16 feet in length, has at an end 12 , that is the ‘clear’ line end, trim saws 14 a and 14 b which are mounted on a carriage 18 .
- Carriage 18 is laterally movable on a pair of parallel guide shafts 22 through the action of linear actuator 26 to reciprocally position trim saws 14 a and 14 b in relation to board 28 for desired length trimming.
- End brackets 20 are rigidly mounted to the frame of trimmer 10 and support both guide shafts 22 and carriage 18 .
- Linear bearings 32 mounted on guide shafts 22 support upper and lower mounting brackets 34 a and 34 b , respectively.
- a pneumatic linear actuator 36 is mounted to each upper bracket 34 a .
- An “L”-shaped or for example a generally “V” shaped yoke 40 is pivotally mounted to each lower mounting bracket 34 b .
- Yoke 40 is a bell-crank oriented with its upper arm 40 a and lower arm 40 b in a vertical plane and pivotable about the intersection between the upper and lower arms.
- Actuator 36 is connected to, and operates on, the upper end of upper arm 40 a .
- a trim saw 14 is rotatably mounted to the distal end of lower arm 40 b .
- Trim saws 14 a and 14 b may thus be independently lowered into a trimming position to trim board 28 , as board 28 translates in the direction of flow, by actuation of the corresponding actuator 36 , or alternatively raised to let board 28 pass through the trimmer untrimmed by a particular trim saw.
- Linear actuator 26 may be selectively actuated to cooperatively lower or elevate trim saws 14 a and 14 b with respect to the end 28 a to be trimmed off board 28 .
- Only one pair of trim saws 14 a and 14 b are mounted only at one end of the trimmer (the example being the clear line end).
- two pairs of trim saws 14 a and 14 b are mounted on their corresponding carriages 18 , one at each end of the trimmer.
- actuator 26 is a 12-inch actuator and trim saws 14 a and 14 b are spaced approximately 12 inches apart, non-incremental trimming is possible over a 24-inch distance. For example, if end 28 a of board 28 is to be trimmed a distance B, equal to 3 inches in the current example, from zero lumber line “A”, the pair of trim saws need be advanced by distance B and the outward trim saw 14 b saw dropped to trim board 28 , while maintaining trim saw 14 a raised.
- the pair of trim saws need only be advanced by distance D of 3 inches, and inward trim saw 14 a lowered to trim board 28 , thereby minimizing the time required to selectively reposition the trim saws.
- each trim saw on each pair of trim saws 14 may be independently laterally movable relative to one another by the inclusion of a second linear actuator.
- each trim saw may be independently laterally translated by its own corresponding linear actuator.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Sawing (AREA)
Abstract
Description
- This application claims priority from U.S. Provisional Patent Application No. 60/534,698 filed Jan. 8, 2004 entitled Laterally Movable Trim Saw.
- This invention relates to the field of lumber trimmers, and in particular to vertically and laterally translatable trim saws.
- A lumber trimmer contains multiple, independently vertically actuable drop saws used to cut lumber into a variety of lengths. The drop saws are fixed in their position along the trimmer. One movable trim saw may be mounted at or near one end of the trimmer. The movable trim saw is vertically and horizontally actuable to trim an end of a board as it passes through the trimmer. In particular, the movable trim saw is a each single circular saw that is horizontally incrementally movable so as to trim the end of a board at a point closest to the desired increment. Where the single movable trim saw may be translated laterally over a distance of for example 24 inches, it will be appreciated that the time interval to move the saw from a minimum first end trim (that is, trimming only a small amount off the end of the board) to a second maximum end trim (in the given example then trimming twenty-four inches off the end of the board) may be relatively lengthy compared to the available time between boards in light of lug speeds approaching 200 lugs per minute typically experienced in conventional lumber handling chain conveyors.
- In the prior art applicant is aware of U.S. Pat. No. 5,142,955 which issued Sep. 1, 1992, to Hale for a Lumber Cutter for Removing End Defects and Sawing to Desired Lengths. This application discloses a unitary drop trim saw mounted at the root edge of a lumber conveyor. The drop trim saw may be selectively vertically articulated into or out of the path of lumber carried by the conveyor. The trim saw is horizontally slidable into the lumber path in ½ inch increments over a 24 inch distance, in order to cut defects from the end of a board.
- The present invention includes selective lateral translation of a pair of independently actuable end trim saws, mounted for concurrent co-axial transverse reciprocal movement at the end of a trimmer, thus minimizing the horizontal translation distance of the saws from a first minimum trimming position to a second maximum trimming position. The time required for lateral translation between these two positions is thereby reduced, which increases efficiency, for example by avoiding a reduction in lumber handling speeds.
- In the current invention, the trim saws has a fixed spacing between them of, for example, 12 {fraction (1/16)} inches, and are vertically actuable by suitable pneumatic means so as to selectively cut lumber to the desired length as it passes through the trimmer. For example, when cutting a 16-foot board, the most valuable use is to cut it into custom stud lengths, such as 92 ⅝ inches. Using trim saws of fixed spacing, two 8-foot boards are normally produced as the larger board passes through the trimmer. A stud is produced at the ‘lumber’ line end of the trimmer where a movable precision end trim saw is employed. The 8-foot (96 inch) length remaining on the opposite ‘clear’ line end remains as a dimensioned lumber piece unless further trimming is available. The substitution of the last two saws in a 16-foot trimmer with a pair of laterally movable trim saws, such as those of the present invention, allows for greater flexibility in the lumber trimming process. In sawmills where metric and other lumber sizes are produced, laterally movable trim saws provide ease of trimming to the required length.
- It is therefore an object of the present invention to provide a lumber trimmer with at least one pair of laterally movable, independently actuable trim saws positioned at one or both ends of the trimmer to facilitate additional trimming of the lumber.
- It is a further object of the present invention to provide a lumber trimmer which can produce a variety of lumber lengths irrespective of the fixed trim saw spacing.
- The present invention is a lumber trimmer having one or more pairs of trim saws which are positioned at an end of the trimmer and which are laterally movable relative to the flow path of the boards, that is, movable parallel to the longitudinal axis of boards translating through the trimmer. Each trim saw of the pair of trim saws is a drop saw which is selectively vertically movable to drop down to trim the end of a board. Without intending to be limiting, where a pair of such movable trim saws are employed they may be mounted to a carriage a fixed distance spaced apart, for example 12 {fraction (1/16)} inches, and are laterally actuable by a hydraulic actuator or other suitable means for example by acting on the carriage. The end trim saws are thus reciprocally and concurrently movable and provide precise non-incremental board end trimming.
- By way of example, by utilizing a laterally extending 12 inch hydraulic actuator where the pair of trim saws is laterally separated by approximately 12 inches, precision trimming can be undertaken over a lateral distance of approximately 2 feet. Where, in a series of boards passing through a trimmer, a first board has been trimmed by the outward trim saw 3 inches from a zero lumber line and the following second board in that series must be trimmed 18 inches from the zero lumber line, the pair of trim saws need only be advanced a further 3 inches following trimming of the first board so as to trim the second board.
- Alternatively, each saw may be independently laterally movable, for example movable on the carriage, by separate actuators. Suitable motion control sensors positioned upstream from the trim saws normally govern the actuation of the hydraulic actuator and operation of the trim saws.
- The supporting frame for supporting the movable trim saws can be preferably mounted to the trimmer carriage at the ‘clear’ end, or alternatively at both ends of the trimmer. A pair of parallel rods may be provided which pass through linear bearings on which the trim saws are mounted. A pneumatic actuator mounted to the frame of the trimmer reciprocally moves the saw pair in unison with respect to the end of the board to be trimmed. Pneumatic actuators mounted in proximity to each saw, and laterally movable in concert with the saws, provide for independent vertical actuation of each trim saw.
- In summary, the trimmer according to the present invention for cutting a workpiece may be characterized in one aspect as including a frame supporting a lateral translation means across a workpiece flow path and a first pair of trim saws mounted at a first end of the trimmer in a parallel spaced apart orientation on the lateral translation means. The first pair of trim saws are laterally translatable on the lateral translation means substantially parallel to a longitudinal axis of the workpiece. A first pair of vertical actuators are provided for selectively independently vertically displacing each trim saw of the first pair of trim saws between a raised position and a lowered position,. Each vertical actuator cooperates with a corresponding trim saw, whereby each the trim saw may be selectively lowered to engage and trim the workpiece. A selectively actuable first lateral actuator cooperates with the lateral translation means for laterally translating the first pair of trim saws reciprocally and concurrently laterally across a workpiece flow path such that a lateral translation distance of the first pair of trim saws is minimized when positioning a first trim saw or a second trim saw of the first pair of trim saws for trimming the workpiece.
- In one embodiment the lateral translation means includes a laterally oriented horizontal first shaft. The lateral actuator is operably coupled to the first pair of trim saws and adapted for selectively horizontally translating the first pair of trim saws non-incrementally along the first shaft substantially parallel to the longitudinal axis of the workpiece.
- The first pair of trim saws may be mounted on a carriage, and the carriage mounted on the first shaft operably coupled to the lateral actuator such that the carriage is selectively laterally movable to reciprocally position the first pair of trim saws relative to the workpiece. Each trim saw may be mounted on a bell-crank. Each vertical actuator cooperates with a corresponding bell-crank. In one embodiment the first shaft includes at least a pair of parallel shafts.
- Each of the bell-cranks may include an upper arm and a lower arm. The first trim saw is rotatably mounted on the lower arm of a first bell-crank and a second trim saw is rotatably mounted on the lower arm of a second bell-crank. A first vertical actuator is mounted to the upper arm of the first bell-crank and a second vertical actuator is mounted to the upper arm of the second bell-crank.
- In one embodiment, the lateral actuator includes two actuators, each operably coupled with a corresponding trim saw of the first and the second trim saws such that the first and the second trim saws may be independently selectively laterally translated on the lateral translation means.
- In a further embodiment a second pair of trim saws are mounted in a parallel spaced apart orientation on the lateral translation means at a second end of the trimmer opposite the first end of the trimmer. The second pair of trim saws are laterally translatable on the lateral translation means substantially parallel to the longitudinal axis of the workpiece. Similar to the first pair of trim saws, a second pair of vertical actuators are provided for selectively vertically independently displacing each trim saw of the second pair of trim saws between a raised position out of the workpiece flow path and a lowered position in the workpiece flow path. A selectively actuable second lateral actuator cooperating with the lateral translation means for laterally translating the second pair of trim saws reciprocally and concurrently laterally across a workpiece flow path such that a lateral translation distance of the second pair of trim saws is minimized when positioning a first trim saw or a second trim saw of the second pair of trim saws for trimming the workpiece. The lateral translation means may include a laterally oriented horizontal second shaft. The second pair of trim saws may be mounted on the second shaft.
-
FIG. 1 is a side elevation view of a lumber trimmer according to the present invention. -
FIG. 2 is a front elevation view of the laterally movable trim saws of the present invention. -
FIG. 3 is a front elevation view of the laterally movable trim saws of an alternative embodiment of the present invention. -
FIG. 4 is a schematic view illustrating successive trimming operations by the trim saws of the present invention. - With reference to the drawing
FIGS. 1-4 , wherein similar characters of reference denote corresponding parts in each view, atrimmer 10, which by way of example has the capacity to accommodate boards of 16 feet in length, has at anend 12, that is the ‘clear’ line end, trim saws 14 a and 14 b which are mounted on acarriage 18.Carriage 18 is laterally movable on a pair ofparallel guide shafts 22 through the action oflinear actuator 26 to reciprocally position trim saws 14 a and 14 b in relation to board 28 for desired length trimming.End brackets 20 are rigidly mounted to the frame oftrimmer 10 and support both guideshafts 22 andcarriage 18. -
Linear bearings 32 mounted onguide shafts 22 support upper and lower mountingbrackets linear actuator 36 is mounted to eachupper bracket 34 a. An “L”-shaped or for example a generally “V” shapedyoke 40 is pivotally mounted to each lower mountingbracket 34 b.Yoke 40 is a bell-crank oriented with itsupper arm 40 a andlower arm 40 b in a vertical plane and pivotable about the intersection between the upper and lower arms.Actuator 36 is connected to, and operates on, the upper end ofupper arm 40 a. A trim saw 14 is rotatably mounted to the distal end oflower arm 40 b. Trim saws 14 a and 14 b may thus be independently lowered into a trimming position to trimboard 28, asboard 28 translates in the direction of flow, by actuation of the correspondingactuator 36, or alternatively raised to letboard 28 pass through the trimmer untrimmed by a particular trim saw. -
Linear actuator 26 may be selectively actuated to cooperatively lower or elevatetrim saws end 28 a to be trimmed offboard 28. In the embodiment ofFIG. 2 , only one pair of trim saws 14 a and 14 b are mounted only at one end of the trimmer (the example being the clear line end). In the embodiment ofFIG. 3 , two pairs of trim saws 14 a and 14 b are mounted on theircorresponding carriages 18, one at each end of the trimmer. - In one example, not intending to be limiting, which may be applied to the simplified view of
FIG. 4 ,actuator 26 is a 12-inch actuator andtrim saws end 28 a ofboard 28 is to be trimmed a distance B, equal to 3 inches in the current example, from zero lumber line “A”, the pair of trim saws need be advanced by distance B and the outward trim saw 14 b saw dropped to trimboard 28, while maintaining trim saw 14 a raised. Where the succeeding or next adjacent board in a sequential series ofboards 28 to be trimmed is required to be trimmed a distance C, equal to 18 inches in the current example, from zero lumber line A, the pair of trim saws need only be advanced by distance D of 3 inches, and inward trim saw 14 a lowered to trimboard 28, thereby minimizing the time required to selectively reposition the trim saws. - In an alternative embodiment of the present invention, which is not illustrated, each trim saw on each pair of trim saws 14 may be independently laterally movable relative to one another by the inclusion of a second linear actuator. Thus each trim saw may be independently laterally translated by its own corresponding linear actuator.
- As will be apparent to those skilled in the art in the light of the foregoing disclosure, many alterations and modifications are possible in the practice of this invention without departing from the spirit or scope thereof.
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/030,052 US7703365B2 (en) | 2004-01-08 | 2005-01-07 | Laterally movable trim saw |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US53469804P | 2004-01-08 | 2004-01-08 | |
US11/030,052 US7703365B2 (en) | 2004-01-08 | 2005-01-07 | Laterally movable trim saw |
Publications (2)
Publication Number | Publication Date |
---|---|
US20050150341A1 true US20050150341A1 (en) | 2005-07-14 |
US7703365B2 US7703365B2 (en) | 2010-04-27 |
Family
ID=34738884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/030,052 Active 2027-08-20 US7703365B2 (en) | 2004-01-08 | 2005-01-07 | Laterally movable trim saw |
Country Status (2)
Country | Link |
---|---|
US (1) | US7703365B2 (en) |
CA (1) | CA2491983C (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080295664A1 (en) * | 2007-06-01 | 2008-12-04 | Semion Stolyar | Web-slitter with electronic motor control |
US20100258017A1 (en) * | 2009-04-10 | 2010-10-14 | Kersey Kevin T | Print Media Slitter |
DE102016119281A1 (en) * | 2016-10-11 | 2018-04-12 | Windmöller & Hölscher Kg | Separating device for the separation of a tubular sheet, system and separation method |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1461919A (en) * | 1922-04-12 | 1923-07-17 | Malta Thomas L La | Cut-off saw |
US2641288A (en) * | 1950-06-13 | 1953-06-09 | Weyerhaeuser Timber Co | Double saw carriage for lumber trimming machines |
US2961015A (en) * | 1957-11-12 | 1960-11-22 | C & D Lumber Co | Power operated device for selectively moving load elements to predetermined positions |
US3036605A (en) * | 1957-08-06 | 1962-05-29 | Kohler Joa Corp | Woodworking machines having cutting tools which may selectively be advanced and retracted with respect to workpieces on a conveyor |
US3176566A (en) * | 1961-06-02 | 1965-04-06 | Beloit Eastern Corp | Remotely positioned slitter system |
US4922780A (en) * | 1987-06-01 | 1990-05-08 | Hurdle Jr Ennis J | Sawmill edger |
US4960023A (en) * | 1986-06-26 | 1990-10-02 | Gebruder Linck Maschinenfabrik "Gatterlinck" Gmbh & Co. Kg | Cross-cut sawing of boards by saw blades mounted on transversely adjustable carriers |
US5142955A (en) * | 1991-05-16 | 1992-09-01 | Trienco, Inc. | Lumber cutter for removing end defects and sawing to desired lengths |
US6526856B2 (en) * | 2000-07-24 | 2003-03-04 | Cae, Inc. | Board trimmer with pre-trimmer near-end saws |
US6543498B1 (en) * | 1999-11-15 | 2003-04-08 | Psi Sales, Inc. | Log cutting system |
US6631662B2 (en) * | 1996-11-12 | 2003-10-14 | Micron Technology, Inc. | Apparatus for sawing wafers employing multiple indexing techniques for multiple die dimensions |
US6705190B2 (en) * | 2000-07-24 | 2004-03-16 | Coe Newnes Mcgehee Ulc | Lumber trimmer |
US7040207B2 (en) * | 2002-07-24 | 2006-05-09 | Linden Fabricating & Engineering (Prince George) Ltd. | Log merchandiser |
-
2005
- 2005-01-07 CA CA 2491983 patent/CA2491983C/en active Active
- 2005-01-07 US US11/030,052 patent/US7703365B2/en active Active
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1461919A (en) * | 1922-04-12 | 1923-07-17 | Malta Thomas L La | Cut-off saw |
US2641288A (en) * | 1950-06-13 | 1953-06-09 | Weyerhaeuser Timber Co | Double saw carriage for lumber trimming machines |
US3036605A (en) * | 1957-08-06 | 1962-05-29 | Kohler Joa Corp | Woodworking machines having cutting tools which may selectively be advanced and retracted with respect to workpieces on a conveyor |
US2961015A (en) * | 1957-11-12 | 1960-11-22 | C & D Lumber Co | Power operated device for selectively moving load elements to predetermined positions |
US3176566A (en) * | 1961-06-02 | 1965-04-06 | Beloit Eastern Corp | Remotely positioned slitter system |
US4960023A (en) * | 1986-06-26 | 1990-10-02 | Gebruder Linck Maschinenfabrik "Gatterlinck" Gmbh & Co. Kg | Cross-cut sawing of boards by saw blades mounted on transversely adjustable carriers |
US4922780A (en) * | 1987-06-01 | 1990-05-08 | Hurdle Jr Ennis J | Sawmill edger |
US5142955A (en) * | 1991-05-16 | 1992-09-01 | Trienco, Inc. | Lumber cutter for removing end defects and sawing to desired lengths |
US6631662B2 (en) * | 1996-11-12 | 2003-10-14 | Micron Technology, Inc. | Apparatus for sawing wafers employing multiple indexing techniques for multiple die dimensions |
US6543498B1 (en) * | 1999-11-15 | 2003-04-08 | Psi Sales, Inc. | Log cutting system |
US7025251B2 (en) * | 1999-11-15 | 2006-04-11 | Psi Sales, Inc. | Log cutting system |
US6526856B2 (en) * | 2000-07-24 | 2003-03-04 | Cae, Inc. | Board trimmer with pre-trimmer near-end saws |
US6705190B2 (en) * | 2000-07-24 | 2004-03-16 | Coe Newnes Mcgehee Ulc | Lumber trimmer |
US7040207B2 (en) * | 2002-07-24 | 2006-05-09 | Linden Fabricating & Engineering (Prince George) Ltd. | Log merchandiser |
Also Published As
Publication number | Publication date |
---|---|
CA2491983C (en) | 2013-06-25 |
US7703365B2 (en) | 2010-04-27 |
CA2491983A1 (en) | 2005-07-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2586509C (en) | Automated system for precision cutting short pieces of lumber | |
US4031790A (en) | Lumber trimmer | |
AU2002303866B8 (en) | Dual-end blinds trimming machine | |
CA2403036C (en) | Continuous log bucking saw system and method | |
SU655287A3 (en) | Device for checking and cutting saw-timber | |
US20090071944A1 (en) | Torch spacing apparatus | |
US4960023A (en) | Cross-cut sawing of boards by saw blades mounted on transversely adjustable carriers | |
US3875841A (en) | Sawmill apparatus | |
US2510471A (en) | Shadow line guide for sawmill edgers | |
US7703365B2 (en) | Laterally movable trim saw | |
US20090260496A1 (en) | Sawmill | |
SE453269B (en) | PROCEDURE AND DEVICE FOR CUTTING Lumber | |
US11772294B2 (en) | Double arbor vertical shape saw | |
US20020152861A1 (en) | Method and apparatus for cutting a cant into boards | |
US4770076A (en) | Work fed truss cutters | |
CA1204650A (en) | Tiltable edger saw mechanism | |
JP4317993B2 (en) | Saw mill | |
US20080230151A1 (en) | Board Edger | |
US3570561A (en) | Installation for subdividing a flat workpiece | |
US20020112782A1 (en) | Method and unit for cutting a log cant | |
US637214A (en) | Adjustable gage for cut-off saws. | |
SU1168091A3 (en) | Device for sawing logs to preset lengths | |
US3224475A (en) | Stud mill | |
CA2198069C (en) | Board edging infeed apparatus | |
RU2252863C2 (en) | Horizontal-disk sawing machine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: COE NEWNES/MCGEHEE ULC, CANADA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WIGHT, GEOFF;KANTYMIR, KEN;HENDERSON, DEANE;REEL/FRAME:015923/0978 Effective date: 20031219 Owner name: COE NEWNES/MCGEHEE ULC,CANADA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WIGHT, GEOFF;KANTYMIR, KEN;HENDERSON, DEANE;REEL/FRAME:015923/0978 Effective date: 20031219 |
|
AS | Assignment |
Owner name: COE NEWNES/MCGEHEE INC.,CANADA Free format text: CHANGE OF NAME;ASSIGNOR:COE NEWNES/MCGEHEE ULC;REEL/FRAME:016745/0932 Effective date: 20050713 Owner name: COE NEWNES/MCGEHEE INC., CANADA Free format text: CHANGE OF NAME;ASSIGNOR:COE NEWNES/MCGEHEE ULC;REEL/FRAME:016745/0932 Effective date: 20050713 |
|
AS | Assignment |
Owner name: BANK OF NEW YORK,TEXAS Free format text: SECURITY AGREEMENT;ASSIGNOR:COE NEWNES/MCGEHEE, INC.;REEL/FRAME:018884/0465 Effective date: 20061115 Owner name: BANK OF NEW YORK, TEXAS Free format text: SECURITY AGREEMENT;ASSIGNOR:COE NEWNES/MCGEHEE, INC.;REEL/FRAME:018884/0465 Effective date: 20061115 |
|
AS | Assignment |
Owner name: USNR/KOCKUMS CANCAR COMPANY, WASHINGTON Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:COE NEWNES/MCGEHEE, INC.;REEL/FRAME:022575/0162 Effective date: 20081218 Owner name: USNR/KOCKUMS CANCAR COMPANY,WASHINGTON Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:COE NEWNES/MCGEHEE, INC.;REEL/FRAME:022575/0162 Effective date: 20081218 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
CC | Certificate of correction | ||
CC | Certificate of correction | ||
FPAY | Fee payment |
Year of fee payment: 4 |
|
AS | Assignment |
Owner name: KOCKUMS CANCAR CO., WASHINGTON Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:CNM ACQUISITION LLC;REEL/FRAME:031819/0509 Effective date: 20131213 |
|
AS | Assignment |
Owner name: WELLS FARGO BANK, NATIONAL ASSOCIATION, OREGON Free format text: SECURITY AGREEMENT;ASSIGNOR:USNR/KOCKUMS CANCAR COMPANY;REEL/FRAME:032132/0979 Effective date: 20131220 |
|
AS | Assignment |
Owner name: USNR/KOCKUMS CANCAR COMPANY, WASHINGTON Free format text: SECURITY INTEREST;ASSIGNOR:WELLS FARGO BANK, NATIONAL ASSOCIATION;REEL/FRAME:035392/0925 Effective date: 20131220 |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552) Year of fee payment: 8 |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 12TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1553); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Year of fee payment: 12 |
|
AS | Assignment |
Owner name: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT, ILLINOIS Free format text: SECURITY AGREEMENT;ASSIGNOR:VECTOR CANADA ACQUISITION ULC;REEL/FRAME:057933/0749 Effective date: 20211012 |